For Concurrent Coplanar Forces?

When all forces are acting in the same plane, they are called coplanar whereas when forces act at the same time and at the same point, they are called concurrent/forces. ... For forces acting in opposite directions along the sameline of action, the resultant force is the arithmetic difference between the two forces.

Are concurrent forces always coplanar?

A simple experiment of holding two pencils (as a model of two vectors) end to end and rotating them around at various angles will show that two concurrent vectors are always coplanar. ...

What are the conditions for equilibrium of coplanar concurrent forces?

Q1: What are the conditions required for coplanar forces in equilibrium? Sum of all forces in X-direction should be equal to zero. Sum of all forces in Y-direction should be equal to zero.